@charset "utf-8";


/* 二、banner部分 */
/* .swiper{
    width: 100%;
    height: 680px;
}
.swiper-wrapper img{
    width: 100%;
    height: 100%;
    object-fit: cover;
} */

/* 原生js */
.banner{
    width: 100%;
    height: 680px;
    position: relative;
}
.banner .pic{
    width: 100%;
    position: absolute;
    top: 0;
    left: 0;
    opacity: 0;
    transition: all 0.5s;
}
.banner .pic>img{
    width: 100%;
    height: 680px;
    object-fit: cover;
}
/* 激活样式 */
.banner div.on{
    opacity: 1;
}
/* 3.1、轮播图分页按钮 */
.banner-btn{
    width: 1200px;
    position: absolute;
    right: 50%;
    margin-right: -600px;
    bottom: 50px;
    text-align: center;
}
.banner-btn a{
    display: inline-block;
    margin: 0 8px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1px solid #999;
    background: #999;
}
.banner-btn a.on{
    background: #fff;
    border: 1px solid #fff;
}

/* 3.2轮播图左右按钮 */
.banner:hover span{
    opacity: 1;
}
.banner section span{
    width: 40px;
    height: 80px;
    background: url(../images/ad_ctr.png) no-repeat;
    position: absolute;
    top: 50%;
    margin-top: -35px;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.5s;
}
.banner section .left-btn{
    left: 30px;
    background-position: -3px -181px;
}
.banner section .left-btn:hover{
    background-position: -6px 0;
}
.banner section .right-btn{
    right: 30px;
    background-position: -17px -272px;
}
.banner section .right-btn:hover{
    background-position: -15px -91px;
}


/* 三、为开发者提供服务 */
.sevice{
    padding: 100px 0;
    text-align: center;
}
/* 共用标题 */
.title{
    margin-bottom: 30px;
}
.title h2{
    font-size: 36px;
    font-weight: normal;
    margin-bottom: 20px;
}
.title p{
    font-size: 14px;
    margin-bottom: 30px;
}
.title span{
    font-size: 12px;
    color: #00f;
    margin-bottom: 30px;
    cursor: pointer;
}
.title span:hover{
    color: #0af;
}

/* 内容 */
.sevice .list li{
    float: left;
    width: 260px;
    margin: 0 20px;
    box-shadow: 0 3px 6px 2px rgba(0, 100, 255, 0.3);
    cursor: pointer;
}
.sevice .list li img{
    width: 260px;
}
.sevice .list li div{
    width: 100%;
    background: #fff;
    padding: 15px;
    box-sizing: border-box;
    text-align: left;
}
.sevice .list div h3{
    font-size: 24px;
    font-weight: normal;
}
.sevice .list div p{
    font-size: 14px;
    margin: 10px 0 20px;
}
.sevice .list div a{
    font-size: 12px;
    color: #00f;
}

/* 四、海量的API服务，丰富的API分类 */
.API{
    padding: 50px 0;
    text-align: center;
    background: #f8f9fb url(../images/more-api-bg.svg) no-repeat;
}
.API li{
    float: left;
    height: 130px;
    width: 220px;
    margin: 10px;
    box-sizing: border-box;
    padding: 20px;
    box-shadow: 0 3px 6px 2px rgba(0, 100, 255, 0.3);
    background-color: #fff;
}
.API li img{
    margin-top: 10px;
}
.API li p{
    margin-top: 20px;
}
.API .API-msg{
    margin-top: 30px;
}
.API .API-msg a{
    color: #03f;
}
.API .API-msg a:hover{
    color: #0af;
}
/* 五、慧集 / APIMaster */
.APIMaster{
    height: 800px;
    padding: 50px 0;
    text-align: center;
    background: #f8f9fb;
    background: url(../images/master-left-bg.svg) no-repeat;
    background-position: 0px 180px;
}
.APIMaster ul{
    float: right;
    text-align: left;
}
.APIMaster ul li{
    width: 450px;
    padding: 15px 30px;
    background: #f8f9fb;
    margin-bottom: 15px;
    font-size: 12px;
    position: relative;
}
.APIMaster ul li::after{
    content: "";
    display: block;
    width: 4px;
    height: 20px;
    background-color: #0af;
    position: absolute;
    left: 0;
    top: 50%;
    margin-top: -10px;
}
.APIMaster ul li h4{
    font-weight: normal;
    font-size: 18px;
    line-height: 38px;
}
.APIMaster ul h4 img{
    margin-right: 10px;
    margin-bottom: 10px;
}

/* <!-- 六、助力行业巨头 / 独角兽企业 --> */
.help{
    height: 400px;
    padding: 50px 0;
    text-align: center;
    position: relative;
}
.help section{
    margin-top: 80px;
    width: 100%;
    padding: 30px;
    box-sizing: border-box;
    background-color: #f8f9fb;
    position: absolute;
    top: 150px;
    opacity: 0;
    transition: opacity 1s;
    z-index: 1;
}
/* 激活样式 */
.help section.on{
    opacity: 1;
    z-index: 99;
}

.help section div{
    position: relative;
}
.help section .company{
    height: 250px;
    position: absolute;
    top: -60px;
    left: 0;
}
.help section .icon{
    position: absolute;
    top: -60px;
    left: 610px;
}
.help section div p{
    width: 590px;
    height: 160px;
    float: right;
    font-size: 14px;
    line-height: 24px;
    text-align: left;
}
.help section div span{
    float: right;
    text-align: right;
    position: relative;
    margin-top: 20px;
}
.help section div span::before{
    content: "";
    display: inline-block;
    width: 20px;
    height: 3px;
    background-color: #0af;
    position: absolute;
    top: 50%;
    margin-top: -1px;
    left: -30px;
}

/* 七、数据安全和可靠合规的服务 */
.data-safty{
    padding: 50px 0;
    text-align: center;
    margin-bottom: 30px;
}
.data-safty li{
    text-align: center;
    float: left;
    width: 200px;
    height: 150px;
    padding: 20px;
    box-sizing: border-box;
}
.data-safty .exception img{
    margin-top: 16px;
    margin-bottom: 4px;
}
.data-safty li p{
    margin-top: 15px;
}

/* 八、免费试用上百种API、体验各类产品和服务 */
.free{
    width: 100%;
    height: 300px;
    text-align: center;
    padding: 100px;
    box-sizing: border-box;
    color: #fff;
    background-color: #1271ef;
    background-image: url(../images/login-register-bg.svg);
}
.free p{
    font-size: 40px;
}
.free a{
    display: inline-block;
    padding: 15px 50px;
    border: 1px solid #fff;
    color: #fff;
    margin-top: 30px;
}

/* 十、返回顶部 */
.back-top{
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: url(../images/returntopicon.jpg) no-repeat;
    background-position: -163px -56px;
    position: fixed;
    bottom: 50px;
    left: 50%;
    margin-left: 650px;
    display: none;
}
.back-top:hover{
    background-position: -163px -97px;
}